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National Institute of Environmental Health Sciences

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Your Environment. Your Health.

Publication Detail

Title: Study of occupation and amyotrophic lateral sclerosis in a Danish cohort.

Authors: Dickerson, Aisha S; Hansen, Johnni; Kioumourtzoglou, Marianthi-Anna; Specht, Aaron J; Gredal, Ole; Weisskopf, Marc G

Published In Occup Environ Med, (2018 09)

Abstract: Several manuscripts have proposed associations between amyotrophic lateral sclerosis (ALS) and occupational toxicant exposures-not to mention physical activity and trauma/injury. Some have also reported associations in investigations of specific occupations. Using data from a prospective Danish cohort study, we investigated the association between employment in certain industries and ALS diagnosis.We identified 1826 ALS cases who were 25 years old or less in 1964 and diagnosed from 1982 to 2013 from the Danish National Patient Registry then matched 100 population controls to each case based on birth year and sex. Demographic data were linked to the Danish Pension Fund to determine occupation history. Conditional logistic regression models were adjusted for socioeconomic status, marital status and residential location at the index date.There was an increase in odds of ALS among men who worked in agriculture, hunting, forestry or fishing (adjusted OR (aOR)=1.21; 95% CI 1.02 to 1.45). There was also a positive association for men employed in construction (aOR=1.21; 95% CI 1.05 to 1.39). In women, a protective association was seen with employment in the cleaning industry (aOR=0.69; 95% CI 0.52 to 0.93).Our study shows various occupations with exposure to toxicants, such as diesel exhaust and lead, and strenuous physical activity associated with increased odds of ALS in men. Future studies should have a particular focus on gathering detailed information on physical exertion and toxicant exposures specific to certain job tasks.

PubMed ID: 29941657 Exiting the NIEHS site

MeSH Terms: Adult; Aged; Amyotrophic Lateral Sclerosis/epidemiology; Amyotrophic Lateral Sclerosis/etiology*; Denmark/epidemiology; Female; Humans; Incidence; Logistic Models; Male; Middle Aged; Occupational Diseases/epidemiology; Occupational Diseases/etiology*; Occupational Exposure/adverse effects*; Odds Ratio; Prospective Studies; Registries; Risk Factors

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